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Addition of floor

First free consultation with our team to validate the feasibility of your project and your renovation budget

*   Our technical plan services for a floor addition project, being subject to measurement records and on-site verification, are offered in the provinces of Quebec and New Brunswick only .

*Unavailable in other Canadian provinces and the United States

Adding a floor to your home is an exciting undertaking that can not only increase the living space, but also the value of your property.

Our company understands the importance of each step of the renovation process and we are here to guide you through every step of your floor addition project.

On this page, we will explore in detail how the renovation plan works for adding a floor to your home, focusing on the key steps, necessary checks, costs involved and potential return on investment.


Add a floor, what you need to know:


Before starting anything, make sure that the project meets all the construction standards of the city and the building in question, with the town planning department of your municipality.

This includes building height regulations, building codes and zoning requirements.

If necessary, your technologist will be able to enlighten you on this subject during your first free consultation.


Our firm's technologists perform a detailed assessment of your existing property to determine its structural and aesthetic feasibility for a floor addition.


This phase involves a thorough analysis of the foundation, load-bearing walls and other structural elements.


Once feasibility is established, our technologist will work closely with you to create detailed plans of the new floor configuration created.


This includes room layout, materials to be used, and aesthetic considerations.

To help him, you can provide him with your existing house plans, photos of the rooms which will be affected by the work, emphasizing the areas which will be modified and sketches or examples of what you want to do in your home so that he can make you a proposal adapted to your needs.


He will then come to take the measurements of your house, locate where the windows, doors are, know everything that is necessary and which may have changed between your current house plans and its final construction. This is when he will draw up your plans.


After submitting your plans, you will be able to return to your municipality to apply for a building permit.


If necessary, we help obtain building permits and other approvals required by local authorities. This ensures that your project is legally compliant.


This phase includes the actual construction of the added floor. At this point you will be able to contact a contractor to plan and begin construction, with final plans provided by our architectural technologist. 


If necessary, we can suggest partner contractors with whom we are used to working and recommend.


Finally, the last stage of your project arrives: the work.


And if you want to reduce your costs as much as possible and stay within your budget, you can first meet with a construction estimator who will help you choose in advance what type of finishes you want.ite use like plumbing, flooring, bath, etc. It will help you know the current materials market and perhaps revise your choices downward to stay within your budget and have a clearer price in mind.

Add a floor : The different steps
measuring tape, calculator, laser rangefinder and plans. Construction control..jpg

Addition of floor:
what is the cost?

The cost of a floor addition varies greatly depending on factors such as the size of the floor, materials used, complexity of the design, and geographic region. By calling on us, you are assured of receiving quotes with precise estimates after an initial evaluation of your property and a discussion on your needs and preferences, all with the aim of offering you the best price to carry out your work. construction. It is important to consider not only the construction costs, but also the prices associated with permits, approvals and possible structural modifications necessary to the rest of the house, cottage or garage.

The return to investment

A well-designed and executed floor addition can have a significant impact on the value of your property. Homes with more living space tend to sell for higher prices. However, the return on investment will also depend on local real estate market conditions and the quality of project execution. Working with experienced professional contractors like those at our firm can increase your chances of obtaining a satisfactory return on investment, and thus increase the value of your home.

Add a floor : What are the costs?
Add a floor : The return on investment

Our team of technologists supports you in your floor addition project

Our firm of dedicated technologists has all the resources to support and guide you through each stage of your floor addition project. From architectural design to construction and finishing, we put all our expertise at your service to create additional space that meets your needs and improves the value of your home. With our commitment to quality, adherence to standards and attention to detail, you can have confidence in our ability to deliver your vision exceptionally well.

Ready to get started on your project of adding a floor?

Adding a floor to your home is a challenging undertaking that can transform your living space and increase the value of your property. By following a structured renovation plan, respecting standards and working with a professional team, you can achieve this transformation successfully.


At Plan Maison Québec, we are here to support you at each phase of the process, from initial design to final completion. Don’t hesitate to contact us to begin exploring the exciting possibilities of your floor addition project.

Bureau des architectes
Ajouter un étage: Notre équipe vous accompagne !

Like you, we want to undertake your project calmly and with certainty.


This is why contacting our architectural technologists and construction estimators to validate the feasibility of the project and your budget is free and without obligation.

Our professionals will also be happy to offer you valuable advice and guide you according to the stage of progress of the project, even if plans are not necessary at the moment.

Ready to get started? Make an appointment online :

Start your project to add a floor
Make an appointment to start the project
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